Update workflow

Signed-off-by: Aditya Sirish <[email protected]>

.github/workflows/run-demo.yml

@@ -15,20 +15,8 @@ jobs:
         uses: actions/setup-python@0a5c61591373683505ea898e09a3ea4f39ef2b9c
         with:
           python-version: '3.11'
-          cache: 'pip'
-          cache-dependency-path: 'requirements.txt'
       - name: Install gittuf
-        uses: gittuf/gittuf-installer@74bc31fb990a714302c6cf75f91cccdaf33961bc
-        with:
-          gittuf-version: '0.1.0'
-      - name: Install GPG
-        run: |
-          sudo apt-get update
-          sudo apt-get install -y gpg
-      - name: Install dependencies
-        run: |
-          python3 -m pip install -U pip
-          python3 -m pip install -r requirements.txt
+        uses: gittuf/gittuf-installer@8ce8fbd070477ec72678151e82b82c3d866d9fcd
       - name: Run demo with --no-prompt
         run: |
           python3 run-demo.py --no-prompt